A fluid-filled compartment inside a cell, surrounded by a membrane.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

A substance that is able to flow freely.
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br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...

Discover the forces at work underwater, which dictate why large boats float but small pebbles sink. Physics - Forces - Learning Points. The buoyant force is an upward-acting force determined by the weight of the displaced water. Ships...

Discover the differences in evolutionary adaptation between dolphins and humans, which allow these marine mammals to move through water far more easily and efficiently than us. Physics - Forces - Learning Points. Dolphins can swim faster...

It can take years before our limbs and brain work together well enough to achieve good balance. What role do our ears play in helping us to meet this incredible challenge? Biology - Being Human - Learning Points. Our sense of balance is...

Learn about how the kidneys function, regulate the salt levels in our bodies, filter our blood, and ultimately keep us alive. Biology - Human Body - Learning Points. The kidneys are located just below the ribs - one on each side of the...

How our ears hear different frequencies, and how they work with the brain to turn these into sounds which we understand. Biology - Being Human - Learning Points. Sounds are simply movements of air molecules. Our ears are extremely...

Friction can be friend or foe. What is friction, how does it affect our lives and how can we alter it? Physics - Forces - Learning Points. Friction is a resistive force between surfaces moving at different velocities. Friction is...

We use a microscope to examine the blood flow in the open circulatory system of asellus aquaticus. We are able to see the haemolymph moving through its limbs in different directions. Biology - Human Body - Learning Points. Large...

The upward force exerted on an object by the fluid which surrounds it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

In this project you will use the Engineering Design Process to test and design your own microfluidic device design and test how the design and thickness of the channels impacts the ability for liquid to flow through the microfluidic...

Follow along Fitness Class - Balance exercises (all ages)

Dr. Larry Thomas visits Sir Eldryd Parry at the Royal Society of Medicine in London to understand the high rate of cataracts in rural Ethiopia. Dr. Parry emphasizes that clean water is crucial for preventing various health issues,...

Explore the fascinating history and technological advances behind two kitchen staples: refrigerators and pressure cookers. Discover how these inventions have revolutionized our food storage and cooking practices. Learn how...

Discover the future of urban mobility in this fascinating exploration of emerging technologies designed to streamline city living. Learn about intelligent traffic light systems that adapt in real-time to reduce congestion, and...

This video is explaining how boat works for kids.

Explore the fascinating world of buoyant force with this physics lesson on submerged objects in fluids! Join us as we dive into the principles behind Archimedes' discovery and unravel the mysteries of why objects float or sink. We'll...

Delve into the world of physics with our latest video on buoyant force! Join us as we explore the concept of buoyant force acting on objects floating on fluids. Learn how to calculate the percentage of a floating object submerged in a...

In this video, we delve into a practical example to understand the buoyant force acting on submerged objects. We explore the physics behind a wood cylinder submerged in water, calculating the buoyant force and discussing common...

In this physics lesson, we dive into the concept of buoyant force by analyzing a hypothetical cube submerged in a fluid. We derive the equation for buoyant force, which is the upward force exerted on an object in a fluid, equal to the...

The curved shape of an aircraft wing, known as a winglet, helps to reduce the amount of drag created by the wingtip vortices. Since the 1980s, winglets have been a major part of future aircraft designs. For some old aircraft, winglets...

Explore the extreme and mind-bending world of physics with these fascinating facts. From water existing in all three states simultaneously at its triple point, to helium defying gravity as a superfluid, and the immense power of solar...

This video highlights the impact of London's congestion charge on traffic reduction and air pollution levels. Researchers at King's College London are conducting a groundbreaking study combining toxicology and epidemiology to assess the...

Explore the process of hearing, from the collection of sound waves by our ears to the interpretation by our brain. The video discusses the ear's structure, including the outer, middle, and inner ear components like the cochlea and...